HIPS (High Impact Polystyrene) - 3d printing fdm material

Thanks for the info on colorants.

and as far as hips goes its not really a concern of one being worse than the other, really don't see how it could be worse than abs or abs-pc, hell pc and delrin can let off some really nasty off gasses, but ya be safe and keep your windows open.

i asked about a msds from boyplastics but never got a reply. so figured either he didn't have it or just skipped over it.

i've been extruding and printing with pellets i've got from him for well over a year now.

and yes josh abs masterbatches do work well with HIPS, but i use urathane a lot since it seems to color more evenly.

Datasheet here: http://resirene.com.mx/images/content/P … g%20v2.pdf

I have bought most of my resins off of ebay and I usually have good results. It's hard to find small quantities anywhere other than ebay.

http://www.ebay.com/itm/RESIRENE-4220-H … SwyQtVxt8a

The datasheet looks acceptable. Assuming that's really what they are selling, hard to know for sure on ebay.

This would be in a Filastruder that I'll be picking up soon.

http://www.ebay.com/itm/121472333224?_t … EBIDX%3AIT

it has dissolved great before also.

and just remembered, I always use Hips when switching from abs to PLA, just a little cup or so, makes the transition much easier.

For 1.75mm filament on a vertical setup I'm currently using 179c temp with stock 1.75 nozzle.
Measured 16-17" per minute @ 1.75mm

Printing temps are relatively the same as abs, I've used 235c temp for latest prints but can go higher.

Out of about 4lbs i've just extruded of 3mm filament and many measurements taken throughout the roll I measured a consistent range from the lowest being 2.68 to 2.81.

These numbers are very rough and taken with 2 different digital calipers, but the range is by far good enough for anything I will be doing with it.

I started using hips a year ago from my filastruder, originally thinking it would be for soluble supports, I still have most of the gallon of D-limonene since Hips can separate fairly easy once cooled from most materials.

I now commonly use it for rafts on all abs/pla prints since it peals off easy once cooled and holds well leaving the final product with a clean bottom, have also used as infill on larger abs prints since it has much better layer adhesion than abs, and prevents warping on larger parts.

Turned heated bed off after first few layers and was fairly cool with the AC on. would be hard pressed to do this with ABS.

Its really a great material, a little stiffer than abs, about as strong, more prone to cracking like PLA after a long time, but not as bad as PLA in this regard.

It doesn't smell so bad like ABS and i'd imagine that's why Lulzbot is pushing HIPS so much now.

Here is a link to a few pictures taken of this recent Hips extrusion session.
http://imgur.com/a/WtPcx

After this roll of 1.7 I'll be set on hips for a while so i'll be trying some nylons from 3dsupply source again, hope to have a better write up on that.

Since HIPS is such a great/easy materials for 3dp I'd recommend trying it if you haven't.

Finished roll of 1.7mm with +/- .03 very happy with this.